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研究生: 汪泰宏
Tai-Hung Wang
論文名稱: 市電併聯型太陽能微型換流器之串疊式電路架構
A Cascode-Circuit Configuration for Grid-Tied Solar Micro-Inverters
指導教授: 邱煌仁
Huang-Jen Chiu
謝耀慶
Yao-Ching Hsieh
口試委員: 林長華
Chang-Hua Lin
楊宗銘
Chung-Ming Young
王見銘
Chien-Ming Wang
學位類別: 博士
Doctor
系所名稱: 電資學院 - 電子工程系
Department of Electronic and Computer Engineering
論文出版年: 2015
畢業學年度: 103
語文別: 中文
論文頁數: 107
中文關鍵詞: 數位訊號處理器串疊式微型換流器最大功率追蹤單級功率轉換
外文關鍵詞: DSP-based, cascode-micro-inverter, maximum power point tracking, single-stage power conversion
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  • 本論文提出了一種建構於數位訊號處理器控制的市電併聯太陽能串疊式微型換流器。一般的串疊式換流器使用多階疊加高電壓輸出,這種換流器直接藉著在數個開關元件來串疊。本論文提出市電併聯型的串疊控制交流模組,其中每個太陽能換流器都具備最大功率點追蹤功能,且透過換流器串疊的電路架構直接併聯到交流市電,為了要使換流器達到模組化的目的,每一組換流器使用單相單極性全橋開關切換。由於是單級性的電力轉換,所以系統複雜性低、轉換效率非常高、最大功率點追蹤精確度高和低諧波失真。一個300瓦原型系統的模擬及實驗,驗證本論文所提出的電路架構是可行性的。


    This dissertation presents the design and implementation of a DSP-based grid-tied solar cascode-micro-inverter. General cascode-inverter architecture is mainly used in multi-stage high-voltage output. The general inverter is used connected directly by several of switching elements in cascode mode. This dissertation presents a grid-tied controlled cascode AC module. The proposed solar inverter with maximum power point tracking (MPPT) function is connected with the AC grid by a cascode-circuit configuration. In order to make inverter achieve the purpose of modular, each inverter uses the unipolar switching for single-phase full-bridge inverter. Using the proposed single-stage power conversion configuration, low system complexity, high conversion efficiency, high MPPT accuracy and low harmonic distortion can be achieved. The simulation and experimental results of a 300 W prototype system were shown to verify the feasibility of the proposed configuration.

    摘 要i 誌 謝iii 目 錄iv 符號索引vii 圖索引xii 表索引xvi 第一章緒論1 1.1前言1 1.2研究動機與目的2 1.3論文大綱3 第二章太陽能電池介紹5 2.1太陽能電池原理6 2.2太陽能電池電氣特性9 2.3太陽能電池種類11 第三章太陽能換流器15 3.1太陽能發電系統之演化15 3.1.1集中型換流器系統16 3.1.2串列型換流器系統18 3.1.3串疊式換流器系統20 3.1.4交流模組系統21 3.2太陽能換流器的種類22 3.2.1電源轉換器級數23 3.2.2功率解耦26 3.2.3隔離變壓器30 3.3併聯電網的介面型態32 第四章串疊式太陽能微型換流器40 4.1單相換流器電路架構41 4.1.1單相半橋式換流器42 4.1.2單相全橋式換流器43 4.1.3正弦式脈波寬度調變44 4.2串疊式換流器電路架構48 4.3本論文之電路控制50 4.4本論文之電路動作51 第五章數位控制原理與設計59 5.1最大功率追蹤演算法介紹59 5.2 PID控制器68 5.3數位信號處理器介紹71 第六章電路設計74 6.1硬體設計75 6.1.1功率開關之電壓應力及電流應力76 6.1.2換流器LC輸出濾波器設計76 6.1.3驅動電路78 6.1.4取樣電路80 6.2軟體規劃83 6.2.1程式執行流程83 第七章模擬與實作驗證88 7.1電路模擬及分析88 7.2電路實驗結果91 第八章結論與未來展望101 8.1結論101 8.2未來展望102 參考文獻104

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